(7x-y)(7x-y)=0

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Solution for (7x-y)(7x-y)=0 equation:


Simplifying
(7x + -1y)(7x + -1y) = 0

Multiply (7x + -1y) * (7x + -1y)
(7x * (7x + -1y) + -1y * (7x + -1y)) = 0
((7x * 7x + -1y * 7x) + -1y * (7x + -1y)) = 0

Reorder the terms:
((-7xy + 49x2) + -1y * (7x + -1y)) = 0
((-7xy + 49x2) + -1y * (7x + -1y)) = 0
(-7xy + 49x2 + (7x * -1y + -1y * -1y)) = 0
(-7xy + 49x2 + (-7xy + 1y2)) = 0

Reorder the terms:
(-7xy + -7xy + 49x2 + 1y2) = 0

Combine like terms: -7xy + -7xy = -14xy
(-14xy + 49x2 + 1y2) = 0

Solving
-14xy + 49x2 + 1y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7x + -1y)(7x + -1y) = 0

Subproblem 1

Set the factor '(7x + -1y)' equal to zero and attempt to solve: Simplifying 7x + -1y = 0 Solving 7x + -1y = 0 Move all terms containing x to the left, all other terms to the right. Add 'y' to each side of the equation. 7x + -1y + y = 0 + y Combine like terms: -1y + y = 0 7x + 0 = 0 + y 7x = 0 + y Remove the zero: 7x = y Divide each side by '7'. x = 0.1428571429y Simplifying x = 0.1428571429y

Subproblem 2

Set the factor '(7x + -1y)' equal to zero and attempt to solve: Simplifying 7x + -1y = 0 Solving 7x + -1y = 0 Move all terms containing x to the left, all other terms to the right. Add 'y' to each side of the equation. 7x + -1y + y = 0 + y Combine like terms: -1y + y = 0 7x + 0 = 0 + y 7x = 0 + y Remove the zero: 7x = y Divide each side by '7'. x = 0.1428571429y Simplifying x = 0.1428571429y

Solution

x = {0.1428571429y, 0.1428571429y}

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